c# - How to convert a string to lowercase characters

String ToLower() Method

String ToLower() method return a copy of the specified string converted to lowercase. this string method exists in the System namesapce.
the ToLower() method return value type is System.String which is a lowercase string. this method does not modify the provided string
instance, it just return a new instance of string object in which all characters are lowercase. this ToLower() method return a new string by
converting all the characters to lowercase from provided string.

the ToLower() method have an overload method that is ToLower(CultureInfo). this ToLower(CultureInfo) method return a copy of the specified string
converted to lowercase, using the casing rules of the specified culture.

the following .net c# example code demonstrate us how can we convert a string to lowercase characters
in an asp.net application.